Results 61 to 70 of about 5,991 (255)

3D‐Printing Aided Rapid Prototyping of Pretensioned Tensegrity Structures for Robotic Applications

Advanced Robotics Research, EarlyView.
Printing, injection molding, and assembly (PMA) is a method for rapid prototyping mesoscale, topologically complex, and tensioned tensegrity structures. In combination with PMA method, two mold design strategies: modular mold and compact channel layout, enable efficiency and scalability for tensegrity fabrication.
Yi Sun, Jan Petrš, Omar Aloui, Dario Floreano   +3 more
wiley   +1 more source

Effect of defect length on rolling contact fatigue crack propagation in high strength steel

Fracture and Structural Integrity, 2015
The objective of the present paper is to clarify the effect of defect length in depth direction on rolling contact fatigue (RCF) crack propagation in high strength steel.
T. Makino, Y. Neishi, D. Shiozawa, Y. Neishi, D. Shiozawa, S. Kikuchi, S. Okada, K. Kajiwara, Y. Nakai   +8 more
doaj  

Study on Relationship between Contact Stress Distribution Characteristic and Fatigue Spalling of Angular Contact Ball Bearing at High Speed

Jixie chuandong, 2021
Fatigue spalling is one of the main failure forms of bearing， and the change of contact stress between rolling body and raceway is an important factor causing fatigue spalling of bearing.
Chao Wan, Kang Zhang, Zeyu Tian, Xiangmin Chen, Luping Li   +4 more
doaj  

The effect of material defect orientation on rolling contact fatigue of a ball bearing. [PDF]

Sci Rep, 2023
Ghazanfari Holagh A, Alizadeh Kaklar J.
europepmc   +1 more source

Wavy‐Interlocked Stretchable Triboelectric Nanogenerators Enhanced by Liquid Metal Microflowers for Self‐Powered Wearable Motion Monitoring

Advanced Science, EarlyView.
Schematic showing a stretchable triboelectric nanogenerator based on interlocked wavy architectures that uses EGaIn microflower‐embedded PVDF‐TrFE and Nylon‐6 nanofiber membranes. The multi‐petaled, electron‐rich EGaIn microflowers enhance interfacial polarization and capacitance, while the interlocked wavy architecture enlarges the effective contact ...
Qianqian Xu, Huimin Li, Hanmin Zeng, Yahui Meng, Yimeng He, Xinke Hu, Senfeng Zhao, Jianxun Zhang, Peiqiong Zhou, Kechao Zhou, Dou Zhang, Chris Bowen, Yan Zhang   +12 more
wiley   +1 more source

In situ observation of rolling contact fatigue cracks by laminography using ultrabright synchrotron radiation

Fracture and Structural Integrity, 2015
In rolling contact fatigue (RCF), cracks usually initiate from inclusions beneath the surface and propagate to the contact surface. In the present study, synchrotron radiation computed laminography (SRCL) imaging was performed to observe flaking defects ...
Y. Nakai, D. Shiozawa, S. Kikuchi, K. Sato, T. Obama   +4 more
doaj  

Rolling contact fatigue calculation of a three-row roller pitch bearing in a wind turbine [PDF]

Wind Energy Science
Rolling contact fatigue calculations of wind turbine pitch bearings need to consider the oscillating operation and the complex dynamic load distribution in the bearing. The present work proposes a methodology to calculate the life of a pitch bearing that
O. Menck, F. Schleich, M. Stammler
doaj   +1 more source

Further Investigations and Parametric Analysis of Microstructural Alterations under Rolling Contact Fatigue. [PDF]

Materials (Basel), 2022
Abdullah MU, Khan ZA.
europepmc   +1 more source

Bio‐templated Piezoresistive Yarn for High Sensitivity Movement Monitoring Textiles

Advanced Science, EarlyView.
This study developed a conductive coating by biotemplating silver nanoparticles (AgNPs) onto a Potato virus A (PV) particle network, cross‐linked on co‐polyamide‐starch (CoPA‐SS) coils. The combination of CoPA‐SS's shape memory and PV‐AgNP's piezoresistivity achieved high strain sensitivity and minimal hysteresis.
Swarnalok De, Viivi Mäkelä, Matteo Iannacchero, Maija Vaara, Fevzihan Basarir, Hossein Baniasadi, Sharon Saarinen, Jani Sainio, Kristiina Mäkinen, Mauri A. Kostiainen, Jaana Vapaavuori   +10 more
wiley   +1 more source

RESEARCH ON THE CONTACT STRESS OF ROLLS AND FATIGUE DAMAGE DISTRIBUTION OF BACKUP ROLL IN FOUR HIGH PC MILL

Jixie qiangdu, 2020
The contact fatigue damage of the roll body caused by cyclic contact stress between rolls in four high mill will not only influence the wear of it,but also subsequent grinding and using life.
XU WenBo, QIN XiaoFeng, XU YingJie
doaj